An Arctic blast is expected to bring cold temperatures and heavy snow to Iowa around Thanksgiving and into early December. A rare weather phenomenon, known as a sudden stratospheric warming, could ...

A rare stratospheric warming event high above the Arctic could disrupt the polar vortex and send colder air toward Texas in the coming weeks.

Meteorologists don't have the specific forecast ready yet, but there is a growing consensus that December will be a frigid one for parts of the United States. The National Weather Service's Climate ...

A wide swath of the western U.S. may be in for below-average temperatures as forecasts suggest an Arctic blast is looming. Reading time 3 minutes Much of the contiguous U.S. could be in for a very ...

In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is "ramping up from its summer slumber," said meteorologist Judah Cohen in an ...

A polar vortex is on its way for much of Canada next week. And while it's not the first time Canadians have faced down the chill of a polar vortex in recent years, this one is set to cause ...

Nearly all of New England has seen its share of frigid cold days and record mountain snow so far this November — and looking ahead, we’re about to get hit with another blast of Arctic air from a ...